package com.lingx.support.local.server;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

/** 
* @author www.lingx.com
* @version 创建时间：2021年1月14日 下午3:27:58 
* 类说明 
*/
public class DateUtils {
	 public static String YYYY = "yyyy";

	    public static String YYYY_MM = "yyyy-MM";

	    public static String YYYY_MM_DD = "yyyy-MM-dd";

	    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

	    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";
	    
	    private static String[] parsePatterns = {
	            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM", 
	            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
	            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

	    /**
	     * 获取当前Date型日期
	     * 
	     * @return Date() 当前日期
	     */
	    public static Date getNowDate()
	    {
	        return new Date();
	    }

	    /**
	     * 获取当前日期, 默认格式为yyyy-MM-dd
	     * 
	     * @return String
	     */
	    public static String getDate()
	    {
	        return dateTimeNow(YYYY_MM_DD);
	    }

	    public static final String getTime()
	    {
	        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
	    }

	    public static final String dateTimeNow()
	    {
	        return dateTimeNow(YYYYMMDDHHMMSS);
	    }

	    public static final String dateTimeNow(final String format)
	    {
	        return parseDateToStr(format, new Date());
	    }

	    public static final String dateTime(final Date date)
	    {
	        return parseDateToStr(YYYY_MM_DD, date);
	    }

	    public static final String parseDateToStr(final String format, final Date date)
	    {
	        return new SimpleDateFormat(format).format(date);
	    }

	    public static final Date dateTime(final String format, final String ts)
	    {
	        try
	        {
	            return new SimpleDateFormat(format).parse(ts);
	        }
	        catch (ParseException e)
	        {
	            throw new RuntimeException(e);
	        }
	    }

	   
	    
	    /**
	     * 获取服务器启动时间
	     */
	    public static Date getServerStartDate()
	    {
	        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
	        return new Date(time);
	    }

	    /**
	     * 计算相差天数
	     */
	    public static int differentDaysByMillisecond(Date date1, Date date2)
	    {
	        return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
	    }

	    /**
	     * 计算两个时间差
	     */
	    public static String getDatePoor(Date endDate, Date nowDate)
	    {
	        long nd = 1000 * 24 * 60 * 60;
	        long nh = 1000 * 60 * 60;
	        long nm = 1000 * 60;
	        // long ns = 1000;
	        // 获得两个时间的毫秒时间差异
	        long diff = endDate.getTime() - nowDate.getTime();
	        // 计算差多少天
	        long day = diff / nd;
	        // 计算差多少小时
	        long hour = diff % nd / nh;
	        // 计算差多少分钟
	        long min = diff % nd % nh / nm;
	        // 计算差多少秒//输出结果
	        // long sec = diff % nd % nh % nm / ns;
	        return day + "天" + hour + "小时" + min + "分钟";
	    }
}
